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Primes in Dana Scott's sequence (A048736).
4

%I #14 Jul 08 2023 14:06:55

%S 2,3,5,13,41,191,1693,77521,6123133,19993321,65877982561,

%T 45970265603856656467133467254989217935871992827865240416294386431

%N Primes in Dana Scott's sequence (A048736).

%C a(n) = A048736(A192242(n)); the larger entries were found as probable primes and then successfully checked with Alpertron's ECM applet.

%H Reinhard Zumkeller, <a href="/A192241/b192241.txt">Table of n, a(n) for n = 1..18</a>

%H Dario Alpern, <a href="https://www.alpertron.com.ar/ECM.HTM">Factorization using the Elliptic Curve Method</a>.

%Y Cf. A129739 (primes in Somos-4 sequence).

%K nonn

%O 1,1

%A _Reinhard Zumkeller_, Jul 01 2011